Doorcheck



Dec. 14 1926. 1,610,404

E. M. WINFREY DOORCHECK Filed August 19, 1925 2 Sheets-Sheet 1 INVENTORWin/re 4 ATTORNEYS Dec. 14,1926. 1,610,404

E. M. WINF'REY DOORCHECK Filed August l9 1925 2 Sheets-Sheet 72ATTORNEYS s meant me EDGAR MAJORWINFREY, F XVICI'IITAFALLS/TEXAS.

DOOBCHECK.

I Application filed August 19, 1925. Serial No. 51,224.

My invention relates to improvements in door checks, and it consists inthe combina-v tlons, constructions and'arrangements here in describedand claimed. I I An object of the invention is the provision of asimple. reliable and highly efiicient door check which will afi'ord'facilitiestor checking the swlnering movement of a door to which it hasbeen' applied so thatithe door vwill remain in a position to which ithasbeen swung and W111 be prevented'from swinging rapidly from open toclosed'position or vice versa, thus precluding slamming of the dooreither to closed or fully. open position;

A further object of the invention is the provision of a door checkof thecharacter described which will take up but little space, will beinconspicuous and will not offer any obstruction to passage through thedoorway.

Other objects and advantages of the invention will be apparent from thefollowing description, considered in conjunction with the accompanyingdrawings, in whichv Figure 1 is a fragmentary perspective view 25showing a practical embodiment of the in vention. operatively applied toa door and frame construction.

Figure 2 is a longitudinal vertical section throughthe door check. s

Figure 3 is arelatively enlarged vertical section through an adjustingscrew of the door check, showing in side elevation a vmem- "b'e'r-forturning the adjusting screw. s Figure 4 is a perspective group view ofcertain partsotthe door check separated from each other. 1

Figure 5 is a showing a second form er door ch'e -bodying the sameinvention. i rigate}? is' 'ai fragmentary rasure-sa 'aperspectiv of theseed bear. my aperspectiyevie f iev ,nwahing'za rhiehea z 'seeachi'of-the' two "i of the invention winch V ai illust ted ih*thedrawing In Figure"1,"I shown do'o e i e. ew t tal; @1 11. bwhich'i'scomprisedijin'the It I i on -wh1ch taper ngtubular outer ITCtlQvertic"alfsect n i at the uppertached to a frame 2 by means ofajhingewhich is of the loose-pin type of construction havingalinedsleeve portions 3 and P respectively attheirgadjacent edgesthrough whicha. pin may extend. l The hinge leaf 3 is attached by screws5 to, an edge ofthe door 1,while the hinge leaf 4' isattachedby screws64 to the tranoeQ. i

In carrying out the invention I replace the usual pin for connecting theleaves 3-and 4 by a pin 7 which extends through the alined Y sleeveportions 3 'and' 4 ofthe hinge leaves and 1s enlarged ad acent to itsupper end;

and above the upper sleeveportion of the hinge to provide a"frusto-conical or up-' wardly tapering head portion 8-which is merged atits lower end'into a neck portion 9 Ellld'WhlChl terminates at 1t-supper end in a reduced portion].(). The neck portion 9 is non-circular1n cross sectlonal contour; and

arm 12 is twisted intermediate its length so portion of the hinge whilethe outer end portion of the arm will liein the planejof one of thehinge leaves, as for example in the plane of the hinge leaf 4 as showninFigures 1and'2. p I The 1 outwardly tapering or "frusto head 18constitutes an inner *fr'icti o e' 'oute friction tio porti'onj of thearm "12 lsproy'ded wit a e evilswere is-a-dapt-ed to fit in an opening11 in an end' portion-0t an arm 12,the lower end-portion;

' of the pin being projected through the open-j ing 11 beforethe pin isinserted "in the alined sleeve portions of the" hinge sleeves. 1 The thearm is apertured as at 1 8 for the reception ofscrews 19 forsecurmg thearm 15 to the adjacent edge of the door 1.

' A pressure transmitting washer 20 .is slidable on the'reduced upperend portion '10 ort the pin and is held against turning on the reducedupper end portion 10 of thep'in by reason of the engagement of avprojection 21 which extends inwardlyfrom the inner wall of the washer 20with a flattened por tion 22 on the periphery of the reduced up per endportion 10'. A pressure adjusting screw 23 has a shank adapted forthreaded engagement with an internally threaded axial socket 24'. whichext-ends in the pm through the reduced upper end portion 10 and into thehead 8. The pressure adjustingrscrew has a head indicated at 24 which isadapted, when the screw is tightened, to contact with the Washer 26 andto transmit motion through the latter to the outer trio.

tion sleeve 13, thereby tending to force the friction sleeve 18downwardly and thus increasing the friction between the concentricfriction members 13, 14 and S.

'It is manifest that-this friction will tend to check the swingingmovement-of the door since the inner friction member is held, againstturning relatively to the axis of the pin 7 while the outer frictionmember is permitted to turn under stress about the axis of the :pin butthe turning movement of the outer friction member is yieldingly resistedbecause of the friction between the associated friction members. Thisresist-;

ance, of course, can be increased within lim its by tightening the adusting screw 23.

In other 'WO1ClS,-i3l16 inner friction member is held substantiallyrigid withone of the hinge leaves while the outer friction member issecured to the same member as the other hinge "leaf andthereforeswinging movement of the hinge -leaves l towards or away fromeach other will be attended by friction which will check such swingingmovement.

The head 2d of the adjusting screw 23 may be castellated and theadjusting screw may support a member for turning the screw, this memberbeing shown as a rod comprising a lower section 25 and an. upper section26v -hingedto each other atytheir adjacent ends and being slidable in a,bore 27 which extends axially of the adjusting screw, the lower section25 having ahead at :28 at its lower end for engaging with a stop-2Q tolimit the axial movement of the rod26-25 upward in the bore of theadjusting screw. The length of the lower sec- "tion 25-of thescrew-operating rod is approximately the same as the distance from theystopw29rto theplane of the :upper face of the head thehscrew,whereby theupper section of the screw-operating rod can be swung laterallytoposition to extend'in 7 any one of the radial grooves 30 in the upperside of the head of the screw when the screw-operating rod is in raisedposition, and a relatively great leverage then can be obtained forturning the screw by manipulating the upper sectionot the rod in the.

manner of a handle, the upper section of the rod being formed with aknob 3lat its The device when applied to a door and frame constructiontakes up but very little space, does not detract from the appearance ofthe door "or tend to obstruct passagethrough the doorway. ncintermediatefriction member 14 is the only member of the device uponwhich any appreciable wear will take place and this member can bereplaced when required quickly and easily and sli-gl-r't cost. Since theintermediate friction member 1 1 is made of leather, it is obvious thatthe function-- ing of thedevice will be attended by but very little, ifa ny, noise. I

In the form of the device exhibited in Figures (Sand 7, the hinge leaf &of the preferred form of the device is replaced by a hinge leafdesignated 32 which differs from the hinge leaf 4 only in that it has :a

notch or notches at 33 in its upper sleeveportion, indicated at 32%, atthe inner edge thereof and through which the pin tor connecting thehinge leaf 32 to the hinge J. .leaf 3 extends. This pin is designated ras 1n the preferred form of the device .and the non-circular neckportion 9 of the pin en gages with the notch or notches '33 to preventturning of the pin '7 about its axis relatively to the axial line of thesleeve portions 32 of the hinge leaf 32, whereby the pin 7; includingthe head portion 8 thereof, is substantially rigid with the hingeleaf:32. The attaching-arm 12 of the preferred form of the device thereforeis omitted from the second form of the-device. The remaining elements ofthe second form of the device are identical with corresponding elementsof the preferred form of thedevice and therefore will not be describedherein, the. same reference nun'lerals having been used to indicate likeparts of the two forms of the device throughout the several views of thedrawings. 7 r

The operation of the modified or second iorm ot the device is identicalin essentiaj respects with theoperation .oi the preferred form of thedevice. V 7 Obviously, the invention is susceptible of embodiment informszother than those which are illustrated in the accompanying.drawings,

thereol aslfairly fall within the'scope of the appended claims. 7 i

and I therefore consider .as my own all such modifieations. andadaptations "'Whatlclaimisr r .l. A door check comprising thecombinationwith a hinge havinga pair of coopera tive hinge plates formed withaligned sleeve portions at their adjacent edges and a pin extendingthrough said alined sleeveportions,-of a frusto-conical friction member,a non-circular neck P01111011 merging said frusto-conical frictionmember and said pin one into the other, an arm having an opening throughwhich 631d non-circular neck portion extends and with which thenoncircular neck portion is engaged, said arm being adapted forattachment to thesame' member as one of said hinge plates, a tapere ingfriction sleeve overlapping said first named friction member, saidfriction sleeve I having an outwardly extending arm adapted tobeattached to the same member as the second of said hinge plates, saidfirst named friction member having a reduced upper end portion, apressure transmitting washer slidable on said reduced upper end portionand held against turning on the latter, and means adjustabl-y engageablewith said upper end portion for forcing said pressure transmittlTlwasher'a ainst the u erend of said friction sleeve to hold said frictionsleeve in frictional association with said fimt named friction member.

2. A door check comprising the combination with a hinge having a pairof-cooperative hinge plates formed with alined sleeve portions at theiradjacent edges and a pin extending through said alinedsleeve portions,of a frusto-conical friction member, a non-circularneck portion mergingsaid frusto-conical friction member and said .pin one into the other, anarm having an opening through which said non-circular neck portionextends and with which the noncircular neck portion is engaged, said armbeing adapted for attachment to thesameome n her as One of saidhinge'plates, a tapering friction sleeve overlapping said first namedfriction member, said friction sleeve having and having a headbearing'against saidpressure transmitting washer.

3. A door check comprisingthe combination with a hinge having'a pair ofcooperative hinge platesformed with alined sleeve portions at theiradjacent edges and a pin extending through said alined sleeve portions,of a frusto-conical friction member,

"a non-circular neck portionhi erg'ing said frusto-conical frictionmember and said pin one into the other," an arm having an openingthrough which said non-circular neck portion extends and withwliichthe non circular neck portion-is engaged, said arm ,being adaptedfor attachment to the same member as one of said hinge plates, atapering friction sleeve overlapping said first named friction member,said. friction sleeve having an outwardly extending arm adapted tobeattached to the same member as the second of said hinge plates, saidfirst named friction member having a reduced upper end portion, apressure transmitting washer slidable on said reduced upper end portionand held against turning on the latter, an

- adjusting screw engaged withai threaded socket in said reduced upper,end portion and having a head-bearing against said pressure transmittingwasher, and a screw operating member comprising a rod slidable in anaxial bore in the screw, said rod comprising a pair of hinged-togethersections, and said screw having an integrally extending stop. I forlimiting the upward movement of said rod, the head of said screw havingradial slots in its upper face, whereby the upper section of said rodcan be swung downwardly when the rod is raised to position to extendthrough one ofsaid radial slots to provide a handle for turning saidscrew. 7

comprising the combination with a pair of hinged plates having alinedsleeve portions at their adjacent edges and a pin extending through saidalined sleeve portions, said pin LA device of the character described 7extending above the planeof the upper ends of said hinge plates andbeingenlarged adjacent to its upper end :to provide a frusto-' conicalfriction head,'s aid pin having a neck portion of non-circularcontourb'elowsaid head and having a reduced upper end'portion above saidhead, a tapering tubular,

friction sleeve overlapping said friction head, a compressible frictionlining between 7 said sleeve and said friction head, means engageablewith said non-circular neck port on and attachable to the same member asone of said hinge plates tohold said pinagainst turning relatively tosaid one hinge.

plate, means carried by the reduced upper.

end portion ofthe pin for adjusting the position of said frictionsleeveon saidfriction head, and an attaching arm extending outwardlyfronisaid friction sleeve-and adapted i second of said hinge plates.

5. .A- device of the character for attachment to the, same member as.the

described ing' a pair of hinge plates formed with alined sleeve portionsat their adjacent edges, the ripper of notch inits' through said A neckportion engaged with said notch to hold said pin againstturningrelatively to saidsleeve portions having a upperend', a pin extending:sleeve portions and having a comprising the combination with a pin hav-I one of said hinge plates, said pin having a' frusto-conical headportion above said neck portion a tapering'conical friction sleeveoverlapping said frusto-conical head portion, said sleeve having alaterally extending arm adapted for attachment to the same member as thesecond of said hinge plates,

EDGAR MAJOR WINFREY

